阅读说明：本技术 一种具有自清洁功能的尘杯及吸尘器 (Dust cup with self-cleaning function and dust collector ) 是由 倪祖根 于 2020-05-08 设计创作，主要内容包括：本申请提供一种具有自清洁功能的尘杯,包括第一尘杯单元、第二尘杯单元、清理组件和弹性锁止组件；第二尘杯单元在第一位置向第二位置运动时,清理组件被弹性锁止组件固定在第一尘杯单元上以使得筛网相对于清理组件运动,从而将筛网的碎屑清除；第二尘杯单元还包括解锁限位部,从第二位置向第三位置运动时,解锁限位部限制清理组件和第二尘杯单元的相对运动,以使得清理组件克服弹性锁止组件的锁定力从第一尘杯单元上脱离。本申请采用弹性锁止组件将清理组件可以简单方便地固定在尘杯上,并且在拆卸滤芯时也可以方便地将清理组件同步拆除,避免期拆装会造成对接器件的变形失效,便于清理和避免二次污染。(The application provides a dust cup with a self-cleaning function, which comprises a first dust cup unit, a second dust cup unit, a cleaning assembly and an elastic locking assembly; when the second dust cup unit moves from the first position to the second position, the cleaning assembly is fixed on the first dust cup unit by the elastic locking assembly so that the screen mesh moves relative to the cleaning assembly, and therefore debris of the screen mesh is removed; the second dust cup unit further comprises an unlocking limiting part, and when the second dust cup unit moves from the second position to the third position, the unlocking limiting part limits the relative movement of the cleaning assembly and the second dust cup unit, so that the cleaning assembly can be separated from the first dust cup unit by overcoming the locking force of the elastic locking assembly. This application adopts elasticity locking subassembly to fix the clearance subassembly on the dirt cup simple and conveniently to also can conveniently demolish the clearance subassembly in step when dismantling the filter core, avoid the phase dismouting can cause the deformation inefficacy of butt joint device, be convenient for clear up and avoid secondary pollution.)

1. A dust cup with a self-cleaning function is characterized by comprising a first dust cup unit (1), a second dust cup unit (2), a cleaning assembly (3) and an elastic locking assembly (4);

the second dirt cup unit (2) is axially movable relative to the first dirt cup unit (1) between a first position and a second position, and is disengageable from the first dirt cup unit (1) when the second position is moved to a third position;

the second dust cup unit (2) comprises a screen (23), and when the second dust cup unit (2) moves from the first position to the second position, the cleaning assembly (3) is fixed on the first dust cup unit (1) by the elastic locking assembly (4) so that the screen (23) moves relative to the cleaning assembly (3) to remove the debris of the screen (23);

the second dust cup unit (2) further comprises an unlocking limiting part (21), and when the second dust cup unit moves to the third position from the second position, the unlocking limiting part (21) limits the relative movement of the cleaning assembly (3) and the second dust cup unit (2), so that the cleaning assembly (3) overcomes the locking force of the elastic locking assembly (4) to be separated from the first dust cup unit (1).

2. The dust cup with self-cleaning function according to claim 1, wherein the first position is a position where the second dust cup unit (2) is completely assembled with the first dust cup unit (1), and the second position is a position where the second dust cup unit (2) and the cleaning assembly (3) are relatively fixed in an initial position-limited fixed state by an action of the unlocking-limiting portion (21) during the disassembling of the second dust cup unit (2).

3. The dust cup with self-cleaning function according to claim 1, wherein said second dust cup unit (2) further comprises a sealing end cap (22), said sealing end cap (22) being adapted to press said cleaning assembly (3) into a cleaning assembly locking position when said cleaning assembly (3) is not fixed to said first dust cup unit (1) and said second dust cup unit (2) is moved from the second position to the first position, such that said cleaning assembly (3) is fixed to the first dust cup unit (1) by the elastic locking assembly (4).

4. A dirt cup with self-cleaning function according to any of claims 1-3, characterized in that the cleaning assembly (3) comprises a fixedly connected catch (31) and a cleaning member (32), the first dirt cup unit (1) comprises a latch fitting, the catch (31) is fixed to the latch fitting by the resilient latch assembly (4), and the cleaning member (32) at least partially abuts the outer surface of the screen (23) when the second dirt cup unit (2) is in at least a partial position section between the first position and the second position.

5. The dust cup with self-cleaning function as claimed in claim 4, wherein the material of the snap-in member (31) is hard material, and the material of the cleaning member (32) at the part which is jointed with the outer surface of the screen (23) comprises elastic material.

6. The dust cup with self-cleaning function as claimed in claim 4, wherein the elastic locking assembly (4) comprises a locking elastic block (41) and an elastic member (42), the locking elastic block (41) has an abutting portion (411) and a locking portion (412), one end of the elastic member (42) abuts against the locking mating portion of the first dust cup unit (1), the other end of the elastic member (42) is connected with the abutting portion (411) of the locking elastic block (41), and the outer surface of the clamping member (31) is provided with a clamping groove matched with the locking portion of the locking elastic block (41).

7. The dust cup with self-cleaning function according to claim 6, wherein said fitting portion of said first dust cup unit (1) comprises a locking assembly housing chamber (11), said locking assembly housing chamber (11) is provided with an abutting wall abutting against said elastic member (42), said first dust cup unit (1) is provided with a locking through hole penetrating through an inner wall of said first dust cup unit (1) and said locking assembly housing chamber (11), and an outer diameter of said locking through hole is smaller than an outer diameter of said abutting portion (411) and equal to or larger than an outer diameter of said locking portion (412).

8. The dust cup with self-cleaning function according to claim 7, wherein there are two locking assembly receiving cavities (11), and the positions of the two locking assembly receiving cavities (11) correspond to the inner cavities of the dust cup shaping cover plate (14) and the connecting block (13) of the first dust cup unit (1), respectively.

9. The dust cup with self-cleaning function as claimed in claim 4, wherein the elastic locking assembly (4) comprises a locking elastic block (41) and an elastic member (42), the locking elastic block (41) has an abutting portion (411) and a locking portion (412), a receiving cavity for receiving the elastic locking assembly (4) is arranged on the clamping member (31), the receiving cavity (11) is provided with an abutting wall abutting against the elastic member (42) and a through hole, the outer diameter of the through hole is smaller than the outer diameter of the abutting portion (411) and larger than or equal to the outer diameter of the locking portion (412), and the first dust cup unit (1) is provided with a locking groove matched with the locking portion (412).

10. The dust cup with self-cleaning function according to claim 4, wherein the cleaning assembly (3) further comprises a first sealing member (33), a first sealing groove (311) is formed on the upper surface of the snap ring (31), and the first sealing member (33) is disposed in the first sealing groove (311).

11. The dust cup with the self-cleaning function as claimed in claim 4, wherein the cleaning member (32) comprises a connecting seat (321) and a cleaning ring (322), the connecting seat (321) and the clamping member (31) are integrally formed or detachably and fixedly connected, the cleaning ring (322) is arranged below the connecting seat (321) and the lower edge of the cleaning ring (322) is attached to the screen (23), the first dust cup unit (1) has a limiting step (17), and when the second dust cup unit (2) is located at the first position, the limiting step (17) is attached to the connecting seat (321).

12. The dust cup with self-cleaning function as claimed in claim 4, wherein a second sealing member (34) is provided between the connecting seat (321) and the snap member (31).

13. The dust cup with the self-cleaning function according to claim 1, wherein the unlocking-limiting portion (21) is a cone-shaped structure, the engaging member (31) is an annular structure, and the maximum inner diameter of the engaging member (31) is smaller than the maximum outer diameter of the cone-shaped structure; or the like, or, alternatively,

the unlocking limiting part (21) is a limiting boss, the screen (23) is provided with a central shaft, and the maximum distance from the inner surface of the clamping piece (31) to the central shaft is smaller than the distance from the outer surface of the limiting boss to the central shaft; or the like, or, alternatively,

the unlocking limiting part (21) is an unlocking limiting groove, the cleaning assembly (3) is provided with a limiting elastic locking assembly (35) on the inner side, and the limiting locking end of the limiting elastic locking assembly is matched with the unlocking limiting groove.

14. A vacuum cleaner comprising the dust cup with a self-cleaning function as claimed in any one of claims 1 to 13.

Technical Field

The invention relates to the field of household appliances, in particular to a dust cup with a self-cleaning function and a dust collector.

Background

The dust collector is widely applied to indoor and outdoor cleaning as a household electrical appliance, and the existing dust collectors are classified according to shapes and can be divided into horizontal type, vertical type, handheld type and the like. The hand-held cleaner has small body size, is very convenient to carry and use, is a household cleaning product between a common household cleaner and a portable cleaner, is suitable for cleaning smaller space, is mainly used for cleaning in a vehicle, and has good cleaning effect on a keyboard, electric appliances and the like. Handheld vacuum cleaners are generally powered by their batteries to facilitate cleaning of automobiles or outdoor items, and thus are beginning to be used by more and more Chinese households.

In the composition structure of the handheld dust collector, the dust cup is one of the more important parts, and the main function of the dust cup is to collect the garbage and sundries sucked by the dust collector. The existing dust cup structure mainly comprises a first dust cup unit, a filter assembly in a shell and the like. Wherein, after the dust absorption many times, remain attachments such as hair, batting, thin dust on the filter component outer wall and hardly clear up, the secondary clearance is carried out through the manual work after taking out the filter core from the dirt cup to common clearance mode, therefore comparatively troublesome to the dust rubbish clearance on the filter core, still cause the secondary pollution to the environment easily.

In order to clear up the remaining attachment on the filtering component more easily among the prior art, the clearance subassembly has been designed in the dirt cup, the clearance subassembly is fixed on the dirt cup inner wall usually, the clearance is difficult to take out to the filter core clearance piece to also influence the installation of filter core itself, fix the knot or break away from the dirt cup with the mode of deformation through the clearance subassembly among some prior art, also can cause the deformation failure of butt joint device for a long time, and the process of installing and taking out the filter core is also comparatively complicated hard.

Disclosure of Invention

In order to solve the technical problems, the invention provides the dust cup with the self-cleaning function, so that a cleaning assembly for cleaning the filter element can be stably and reliably mounted and dismounted in the mounting and dismounting processes of the filter element, the cleaning is convenient, and secondary pollution is avoided.

The technical effects of the invention are realized as follows:

the application relates to a dust cup with a self-cleaning function, which comprises a first dust cup unit, a second dust cup unit, a cleaning assembly and an elastic locking assembly;

the second dirt cup unit is axially movable relative to the first dirt cup unit between a first position and a second position and is disengageable from the first dirt cup unit when the second position moves to a third position;

the second dirt cup unit includes a screen, the cleaning assembly being secured to the first dirt cup unit by a resilient latch assembly upon movement of the second dirt cup unit from the first position to the second position to move the screen relative to the cleaning assembly to remove debris from the screen;

the second dust cup unit further comprises an unlocking limiting part, and when the second dust cup unit moves from the second position to the third position, the unlocking limiting part limits the relative movement of the cleaning assembly and the second dust cup unit, so that the cleaning assembly can be separated from the first dust cup unit by overcoming the locking force of the elastic locking assembly.

Furthermore, the first position is a position where the second dust cup unit and the first dust cup unit are assembled, and the second position is a position where the second dust cup unit and the cleaning assembly are relatively fixed in an initial limiting and fixing state through the unlocking limiting part in the process of disassembling the second dust cup unit.

Further, the second dirt cup unit further comprises a sealing end cover, and when the cleaning assembly is not fixed on the first dirt cup unit and the second dirt cup unit moves from the second position to the first position, the sealing end cover is used for pressing the cleaning assembly into the cleaning assembly locking position, so that the cleaning assembly is fixed on the first dirt cup unit by the elastic locking assembly.

Further, the clearance subassembly includes fixed connection's joint spare and clearance piece, first dirt cup unit includes locking cooperation portion, the joint spare passes through elasticity locking subassembly is fixed on the locking cooperation portion when second dirt cup unit is located at least part position section between primary importance and the second place, clearance piece at least part with the laminating of screen cloth surface.

Furthermore, the clamping piece is made of a hard material, and the cleaning piece and the part attached to the outer surface of the screen are made of an elastic material.

Further, elasticity locking subassembly includes locking bullet piece and elastic component, the locking bullet piece has butt portion and locking portion, elastic component one end with the locking cooperation portion butt of first dirt cup unit, the elastic component other end with the butt portion of locking bullet piece links to each other, the surface of joint spare be equipped with locking portion assorted joint groove of locking bullet piece.

Further, the matching part of the first dust cup unit comprises a locking assembly accommodating cavity, the locking assembly accommodating cavity is provided with an abutting wall abutted to the elastic piece, the first dust cup unit is provided with a locking through hole penetrating through the inner wall of the first dust cup unit and the locking assembly accommodating cavity, and the outer diameter of the locking through hole is smaller than that of the abutting part and is larger than or equal to that of the locking part.

Furthermore, the number of the locking assembly accommodating cavities is two, and the positions of the two locking assembly accommodating cavities are respectively and correspondingly arranged in the dust cup modeling cover plate of the first dust cup unit and the inner cavity of the connecting block.

In another implementation mode, the elastic locking assembly comprises a locking elastic block and an elastic piece, the locking elastic block is provided with a butting part and a locking part, a containing cavity for containing the elastic locking assembly is arranged on the clamping piece, a butting wall and a through hole abutted to the elastic piece are arranged in the containing cavity, the outer diameter of the through hole is smaller than the outer diameter of the butting part and larger than or equal to the outer diameter of the locking part, and the first dust cup unit is provided with a locking groove matched with the locking part.

Further, the cleaning assembly further comprises a first sealing element, a first sealing groove is formed in the upper surface of the clamping ring, and the first sealing element is arranged in the first sealing groove.

Further, the clearance piece includes connecting seat and clean circle, the connecting seat with joint piece integrated into one piece or detachably fixed connection, clean circle is located the connecting seat below just the lower limb of clean circle with the screen cloth laminating, first dirt cup unit have spacing step, and when second dirt cup unit was located the first position, spacing step and connecting seat laminating.

Further, a second sealing element is arranged between the connecting seat and the clamping piece.

Furthermore, the unlocking limiting part is of a conical structure, the clamping piece is of an annular structure, and the maximum inner diameter of the clamping piece is smaller than the maximum outer diameter of the conical structure; or the unlocking limiting part is a limiting boss, the screen is provided with a central shaft, and the maximum distance from the inner surface of the clamping piece to the central shaft is smaller than the distance from the outer surface of the limiting boss to the central shaft; or the unlocking limiting part is an unlocking limiting groove, the cleaning assembly is provided with a limiting elastic locking assembly on the inner side, and the limiting locking end of the limiting elastic locking assembly is matched with the unlocking limiting groove.

In addition, the invention also provides a dust collector which comprises the dust cup with the self-cleaning function.

As described above, the present invention has the following advantageous effects:

1. the cleaning assembly can be simply and conveniently fixed on the dust cup by adopting the elastic locking assembly, the cleaning assembly can also be conveniently and synchronously dismounted when the filter element is dismounted, and the screen cleaning process is completed in the dust cup in the dismounting process, so that the deformation and failure of a butt joint device caused by long-term dismounting are avoided, the cleaning is convenient, and the secondary pollution is avoided;

2. the clamping piece is made of hard materials, and the contact part of the cleaning piece and the screen is made of soft materials, so that the clamped part is less prone to deformation and more stable, and the cleaning part is softer and cannot damage the filter element;

3. the positions of the two locking assembly accommodating cavities are respectively and correspondingly arranged in the dust cup modeling cover plate and the connecting block of the first dust cup unit, so that the space is effectively saved;

4. through end cover and the spacing portion of unblock, can be so that clearance subassembly and second dirt cup unit can install and dismantle in step to accomplish the clearance in step in the dismantlement process.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art it is also possible to derive other drawings from these drawings without inventive effort.

Fig. 1 is a schematic external structural view of a dust cup structure according to a first embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a second dirt cup unit in a first position according to an embodiment of the present application;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

FIG. 4 is a schematic structural diagram illustrating a snap-fit operation of an elastic locking assembly according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of an internal cross-sectional structure of a cleaning ring just contacting the unlocking limiting portion according to an embodiment of the present application;

FIG. 6 is a schematic sectional view of the second dirt cup unit in a second position according to the embodiment of the present application;

FIG. 7 is a schematic sectional view of the second dirt cup unit in a third position according to the embodiment of the present application;

FIG. 8 is a schematic view of the internal cross-section of the second dirt cup unit and the cleaning assembly during initial relative movement during installation in accordance with an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of the second dirt cup unit shown in position after a distance of relative movement with the cleaning assembly during installation in accordance with an embodiment of the present application;

FIG. 10 is a schematic view of the internal cross-sectional structure of the second dirt cup unit when it is in a first position as installed in accordance with an embodiment of the present application;

FIG. 11 is an enlarged partial schematic view of FIG. 10;

FIG. 12 is a schematic view of the third embodiment of the present application showing the internal cross-sectional structure of the second dirt cup unit in the first position;

FIG. 13 is a schematic sectional view of the third embodiment of the present application showing the second dirt cup unit in a second position;

FIG. 14 is an enlarged partial schematic view of FIG. 13;

FIG. 15 is a schematic sectional view of the third embodiment of the present application showing the second dustcup unit in a third position;

FIG. 16 is a schematic illustration of a cross-sectional view of the second dirt cup unit shown after relative movement of the second dirt cup unit and the cleaning assembly for a predetermined distance during installation in accordance with a third embodiment of the present application;

figure 17 is a schematic view of the internal cross-sectional structure of the second dirt cup unit when it is in the first position during installation in accordance with the third embodiment of the present application.

Wherein the reference numbers in the drawings correspond to the following:

1. a first dirt cup unit; 11. an accommodating chamber; 12. a tuyere; 13. connecting blocks; 14. a dust cup modeling cover plate; 15. a first dust collection chamber; 16. a second dust collecting chamber; 17. a limiting boss; 2. a second dirt cup unit; 21. unlocking the limiting part; 22. sealing the end cap; 23. screening a screen; 24. a secondary filtration component; 25. dust collection sponge; 3. cleaning the assembly; 31. a clamping piece; 311. a first seal groove; 312. a clamping piece limiting part; 32. cleaning the workpiece; 321. a connecting seat; 322. cleaning the ring; 33. a first seal member; 34. a second seal member; 4. an elastic locking assembly; 41. a locking spring block; 411. an abutting portion; 412. a lock section; 42. an elastic member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Example 1:

the embodiment provides a dust cup structure which is used in a household dust collector and mainly used for collecting garbage and sundries sucked by the dust collector. As shown in fig. 1 to 11, the dust cup structure has a first dust cup unit 1, i.e., a dust cup housing assembly, and an air opening 12 for ventilation during dust collection, a dust cup-shaped cover plate 14, and a connecting block 13 for docking with the cleaner body are provided on the first dust cup unit 1, wherein the dust cup-shaped cover plate 14 locks the dust cup and the cleaner body by a locking member provided thereon, and the surface of the dust cup-shaped cover plate 14 is in streamline fit with the hand-held portion, so that the appearance is more beautiful. The connecting block 13 is arranged above the ventilation opening 12 and used for being clamped and positioned with the dust collector main body and ensuring the sealing effect of the ventilation opening 12 when the dust cup is arranged on the dust collector main body. The dust cup structure also comprises a second dust cup unit 2, namely a filter element assembly, a cleaning assembly 3 and an elastic locking assembly 4, wherein the first dust cup unit 1 comprises an inner cavity with a hollow structure, when the installation of the dust cup structure is completed, the second dust cup unit 2 is arranged in the inner cavity of the first dust cup unit 1, the inner cavity of the first dust cup unit 1 is provided with a first dust collecting cavity 15 and a second dust collecting cavity 16, the second dust cup unit 2 comprises a screen 23, a secondary filtering component 24 and a dust collection sponge 25, after the dust enters the inner cavity of the first dust cup unit 1, the dust rotates between the inner wall of the first dust cup unit 1 and the screen 23, large particles of dust are thrown out and fall into the first dust collection cavity 12, the small particle dust enters the secondary filter component after penetrating through the screen, and is rotated between the secondary cone and the cyclone cone to generate centrifugal force to be continuously separated, most particles fall into the second dust collection cavity 14, smaller dust particles that cannot be separated in the secondary filter assembly 24 are drawn into the dust collection sponge 25 by suction.

The second dust cup unit 2 is movable in the axial direction relative to the first dust cup unit 1 between a first position and a second position, and is detachable from the first dust cup unit 1 when the second position is moved to a third position;

the second dirt cup unit 2 includes a screen 23, and when the second dirt cup unit 2 moves from the first position to the second position, the cleaning assembly 3 is fixed to the first dirt cup unit 1 by the elastic locking assembly 4 so that the screen 23 moves relative to the cleaning assembly 3 to remove debris from the screen 23;

the second dust cup unit 2 further includes an unlocking stopper 21, and when moving from the second position to the third position, the unlocking stopper 21 restricts relative movement of the cleaning assembly 3 and the second dust cup unit 2, so that the cleaning assembly 3 is disengaged from the first dust cup unit 1 against the locking force of the elastic locking assembly 4. Specifically, the relative spacing between the second dust cup unit 2 and the cleaning assembly 3 is realized by the spacing matching between the unlocking limiting part 21 and the clamping part limiting part 312 arranged on the lower surface of the clamping part 31.

The second dirt cup unit 2 further comprises a sealing end cap 22, the sealing end cap 22 being adapted to press the cleaning assembly 3 into the cleaning assembly locking position when the cleaning assembly 3 is not secured to the first dirt cup unit 1 and the second dirt cup unit 2 is moved from the second position to the first position, such that the cleaning assembly 3 is secured to the first dirt cup unit 1 by the resilient locking assembly 4.

Clearance subassembly 3 includes fixed connection's joint spare 31 and clearance piece 32, and first dirt cup unit 1 includes locking cooperation portion, and joint spare 31 is fixed on locking cooperation portion through elasticity locking subassembly 4, and when second dirt cup unit 2 was located between primary importance and the second place, clearance piece 32 was at least partly laminated with screen cloth 23 surface.

As shown in fig. 2, the second dust cup unit 2 is located at a first position, the first position is a position where the second dust cup unit 2 and the first dust cup unit 1 are assembled, the second dust cup unit 2 and the first dust cup unit 1 are in an assembled state, the sealing end cover 22 is located at a lowest position which can be pressed down at the moment, the sealing end cover 22 and the cover plate 312 are relatively sealed by the first sealing element 33 at the moment, the locking portion of the locking elastic block 41 is inserted into the annular groove of the outer surface of the clamping member 31, the clamping member 31 is fixed on the locking matching portion through the elastic locking assembly 4, the lowest edge of the cleaning member 32 is higher than the mesh of the screen 23, the lowest edge of the cleaning member 32 is attached to the outer surface of the screen 23, the limiting step 17 is attached to the connecting seat 321, and the connecting seat 321 forms a sealing state with the limiting step through the sealing element coated on the outer side of the connecting seat 321.

As shown in fig. 6, when the second dust cup unit 2 is located at the second position, which is the position where the unlocking limiting portion 21 is in initial contact with the engaging member limiting portion 312 provided on the lower surface of the engaging member 31 when the second dust cup unit 2 is removed from the first dust cup unit 1, the second dust cup unit 2 and the cleaning assembly 3 are in the initial limiting and fixing state by the action of the unlocking limiting portion 21, the minimum inner diameter of the engaging member 31 is smaller than the outer diameter of the unlocking limiting portion 21, the engaging member limiting portion 312 of the engaging member 31 is in initial contact with the upper surface of the unlocking limiting portion 21, the locking portion of the locking elastic block 41 is inserted into the annular groove on the outer surface of the engaging member 31, the cleaning ring 322 is pushed through the unlocking limiting portion 21 by elastic deformation, the engaging member limiting portion 312 on the engaging member 31 is in contact with the unlocking limiting portion 21, and if the second dust cup unit 2 is pulled up again, the unlocking limiting portion 21 will provide an upward force to the cleaning assembly 3, the unlocking limiting part 21 limits the relative movement of the cleaning assembly 3 and the second dust cup unit 2, unlocking force is applied to the clamping ring 31 through the unlocking limiting part 21, the unlocking force is transmitted between the clamping piece 31 and the locking part 412, and therefore unlocking is completed through the locking force of the elastic piece 42, namely starting from the second position, if the second dust cup unit 2 moves upwards again, the clamping ring 31 and the second dust cup unit 2 can also move relatively after being separated from the first dust cup unit 1, so that the cleaning assembly 3 is separated from the first dust cup unit 1 to the third position along with the second dust cup unit 2, and the dismounting process is completed. When the second dirt cup unit 2 is in the third position, the cleaning assembly 3 is in a state of just being separated from the elastic locking assembly 4, and can be finally in the position shown in fig. 7 by continuously pulling up. Specifically, the clamping member 31 is made of a hard material, at least a portion of the cleaning member 32 attached to the outer surface of the screen 23 is made of an elastic material, preferably, all of the elastic material, in this embodiment, the clamping member 31 is made of a hard material, such as a non-deformable metal material, a hard polyethylene material, or ABS plastic, and the elastic material included in the cleaning member 32 may be a rubber material that is easily deformable, preferably a TPE material, or may be made of other flexible materials commonly used in the art for cleaning, such as a manual or natural brush, a sponge, and the like. The cleaning element may preferably be in the form of a conical housing ring.

The clamping piece 31 made of hard materials can not deform easily in the locking process and the unlocking process at ordinary times, failure caused by long-term use is avoided, the part made of elastic materials can be tightly attached to the part needing cleaning of the screen, and damage to the screen is avoided.

Specifically, the elastic locking assembly 4 includes a locking elastic block 41 and an elastic member 42, the locking elastic block 41 has a contact portion 411 and a locking portion 412, one end of the elastic member 42 is in contact with the first dust cup unit 1, the other end of the elastic member 42 is connected to the contact portion 411 of the locking elastic block 41, and the outer surface of the clamping member 31 is provided with an annular groove matched with the locking portion of the locking elastic block 41. The elastic member 42 is a spring in this embodiment, and may be made of other elastic materials, in this embodiment, the abutting portion 411 is provided with an elastic member accommodating cavity for accommodating a part of the spring, one end of the elastic member abuts against the inner wall of the elastic member accommodating cavity, and when the elastic member is compressed, the elastic member will be partially or completely contracted into the elastic member accommodating cavity. Because joint 31 is made for hard material, lies in locking part 412 joint and unblock in-process, is difficult to take place to warp, and the material of clearance piece 32 is then softer than joint material, can hug closely the clearance that second dirt cup unit carried out the surface to it.

The end of the locking part 412 has a guiding surface, which may be an arc surface or an inclined surface, the outer surface of the locking part 412 forms an acute angle with the surface of the clamping member 31 except the annular groove, when the locking part is installed, the clamping member 31 forms a biasing force on the elastic locking assembly 4, and the elastic member 42 is squeezed to contract, so that the locking part 412 enters the annular groove. In this embodiment, the locking portion 412 is designed to be an upper and lower arc, so that the filter element is smoothly handled without being stuck when being taken in and out. In other embodiments, the latching portion 412 may also be of triangular or polygonal design.

Specifically, first dirt cup unit 1 is equipped with the locking subassembly and holds chamber 11, the locking subassembly holds chamber 11 and is equipped with the butt wall with elastic component 42 butt, first dirt cup unit 1 is equipped with the locking through-hole that link up first dirt cup unit 1 inner wall and locking subassembly and hold chamber 11, the minimum external diameter that the trompil department that the locking through-hole was seted up on first dirt cup unit inner wall is less than the external diameter of butt portion 411 and the external diameter of more than or equal to locking portion 412, can make locking portion 412 can partially stretch out the locking through-hole and butt portion 411 is spacing in the through-hole. In this embodiment, the number of the locking assembly accommodating cavities 11 is two, and the positions of the two locking assembly accommodating cavities 11 correspond to the inner cavities of the dust cup molding cover plate 14 and the connecting block 13 of the first dust cup unit 1, respectively. Through the structure that utilizes first dirt cup unit itself to design, be convenient for hide the locking subassembly, compact structure.

The cleaning piece 32 comprises a connecting seat 321 and a cleaning ring 322, the connecting seat 321 is fixedly connected with the clamping piece 31, the cleaning ring 322 is arranged below the connecting seat 321, the lower edge of the cleaning ring 322 is attached to the screen 23, the first dust cup unit 1 is provided with a limiting step 17, and when the second dust cup unit 2 is located at the first position, the limiting step 17 is attached to the connecting seat 321; spacing step 17 separates into opening chamber 18 and filter core and holds chamber 19 with first dirt cup unit, and the medial surface of opening chamber 18 and the lateral surface phase-match of end cover 22, and spacing step 17 can restrict end cover 22's minimum pushing down position, and when connecting seat 321 and spacing step 17 laminating, can't push down again promptly, and joint ring 31 also is in the position of locking each other with elasticity locking subassembly 4 just in time this moment. In the process of pulling out the second dust cup unit 2, the cleaning ring 322 firstly contacts the unlocking limit part 21, and the cleaning ring 322 makes the unlocking limit part 21 extrude through the cleaning ring 322 by elastic deformation and then continuously rises; when the second dust cup unit is installed, the unlocking limiting part 21 can be pushed over the lower edge of the cleaning ring 322 in the pressing process of the second dust cup unit 2, and finally the second position is reached.

In order to seal the cleaning assembly 3 and the second dust cup unit, the cleaning assembly 3 further comprises a first sealing element 33, a first sealing groove 311 is formed in the upper surface of the clamping ring 31, and the first sealing element 33 is arranged in the first sealing groove 311; the second dirt cup unit 2 includes a sealing end cap 22. the sealing end cap 22 mates with the open interior of the first dirt cup unit, the lower surface of the sealing end cap 22 applies downward pressure to the upper surface of the snap-in member 31 when the filter assembly 2 is installed, and the first seal member 33 is used to seal the sealing end cap 22 and the cover plate 312 relative to each other. In this embodiment, the unlocking limiting part 21 is disposed on a side surface of one end of the second dust cup unit, specifically, on a side surface of the lowest part of the screen 23, the unlocking limiting part 21 is a limiting boss, the screen 23 has a central shaft, and the maximum distance from the inner surface of the clamping member 31 to the central shaft is smaller than the distance from the outer surface of the limiting boss to the central shaft; so that the cleaning ring 32 is not pulled out until the filter screen is completely cleaned. The unlocking limiting part 21 may be two or more projections, and preferably, may also be an annular boss in the present embodiment.

The mounting and dismounting process of the dust cup structure of this embodiment is as follows:

when dismantling, the user is through carrying the handle that draws the setting on end cover 22, upwards extract second dirt cup unit 2 to the second position from the second position, extract the in-process up at second dirt cup unit 2, because clearance subassembly 3 is locked by elasticity locking subassembly 4, clean circle 32 laminating screen cloth 23 and relative motion, clean 23 surface of screen cloth, until clean circle 322 contact unblock spacing portion 21, the clean process to the screen cloth has been accomplished this moment, because when unblock spacing portion 21 extrudees clearance piece 32, elasticity locking subassembly 4 receives the pressure of joint piece 31 and is less than the power that the unblock needs, consequently joint piece 31 can not be with the unblock of elasticity locking subassembly 4. In the process of pulling out the second dust cup unit 2, the cleaning ring 322 firstly contacts the unlocking limiting part 21, the cleaning ring 322 enables the unlocking limiting part 21 to extrude through the cleaning ring 322 through elastic deformation, at the moment, the cleaning ring 322 thoroughly cleans the screen 23 and the unlocking limiting part 21, when the second dust cup unit continues to move upwards to the second position, as the minimum inner diameter of the clamping piece 31 is smaller than the outer diameter of the unlocking limiting part 21, the unlocking limiting part 21 limits the relative movement of the cleaning component 3 and the second dust cup unit 2, the unlocking limiting part 21 applies unlocking force to the clamping ring 31, the unlocking force is transmitted between the clamping piece 31 and the locking part 412, so that the locking force of the elastic piece 42 completes unlocking, at the moment, the second dust cup unit 2 and the cleaning component 3 are detached and pulled out from the first dust cup unit 1 together, the whole process only needs one coherent action to complete the cleaning of the screen inside the dust cup, and the second dirt cup unit 2 can be removed together with the cleaning assembly 3.

During installation, the second dust cup unit 2 is located at the third position, the cleaning assembly 3 is sleeved on the second dust cup unit 2, and the elastic locking assembly 4 is arranged on the inner side of the first dust cup unit 1 and partially protrudes out of the inner wall of the first dust cup unit 1. When the second dust cup unit 2 is located at the third position, the lower edge of the cleaning assembly 3 is limited by the protruding part of the elastic locking assembly 4 and does not move downwards along with the second dust cup unit 21, so that the second cyclone unit 21 moves downwards relative to the clamping piece 31, the unlocking limiting part 21 firstly pushes the lower edge of the cleaning ring 322 and then continues to move downwards, when the second cyclone unit 2 approaches the first position, the lower surface of the sealing end cover 22 is in contact with the clamping piece 31, the second dust cup unit 2 is pressed downwards, and the lower surface of the sealing end cover 22 exerts downward pressure on the clamping piece 31. After joint 31 contacted locking bullet piece 41 of elasticity locking subassembly 4, because the butt portion 411 of locking bullet piece 41 is the cambered surface, under the extrusion of the joint 31 that hard material made, the locking bullet piece 41 overcomes the locking subassembly of first dirt cup unit 1 and holds the intracavity 11 internal contraction after the power of elastic component 42, joint 31 continues down, until the butt portion 411 of locking bullet piece 41 gets into the ring channel of joint 31, accomplish the relative locking of clearance subassembly 3 and first dirt cup unit 1, connecting seat 321 and spacing step 17 butt this moment, second dirt cup unit 2 reachs first position, accomplish the installation.

According to the embodiment, the application has the following beneficial effects:

1. the cleaning assembly can be simply and conveniently fixed on the dust cup by adopting the elastic locking assembly, the cleaning assembly can also be conveniently and synchronously dismounted when the filter element is dismounted, and the screen cleaning process is completed in the dust cup in the dismounting process, so that the deformation and failure of a butt joint device caused by periodical dismounting are avoided, the cleaning is convenient, and the secondary pollution is avoided;

2. the clamping piece is made of hard materials, and the contact part of the cleaning piece and the screen is made of soft materials, so that the clamped part is less prone to deformation and more stable, and the cleaning part is softer and cannot damage the filter element;

3. the positions of the two locking assembly accommodating cavities respectively correspond to the interiors of the dust cup modeling cover plate and the connecting block of the decorating part of the first dust cup unit, so that the space is effectively saved;

4. through end cover and the spacing portion of unblock, can be so that clearance subassembly and second dirt cup unit can install and dismantle in step to accomplish the clearance in step in the dismantlement process.

Example 2:

the difference from embodiment 1 is that, in this embodiment, the elastic locking assembly is installed on the clip, specifically, the elastic locking assembly 4 includes a locking elastic block 41 and an elastic member 42, the locking elastic block 41 has an abutting portion 411 and a locking portion 412, the clip 31 is provided with an accommodating cavity for accommodating the elastic locking assembly 4, the accommodating cavity is provided with an abutting wall abutting against the elastic member 42 and a through hole, an outer diameter of the through hole is smaller than an outer diameter of the abutting portion 411 and is greater than or equal to an outer diameter of the locking portion 412, and the first dust cup unit 1 is provided with a locking groove matching with the locking portion 412. The dust cup is provided with the locking groove, and the through hole is not required to be formed in the inner wall of the dust cup.

Example 3:

referring to fig. 12-17, in the present embodiment, the unlocking limiting portion 21 is an unlocking limiting groove disposed on the unlocking limiting member below the screen 23, the cleaning assembly 3 has a limiting elastic locking assembly 35 disposed on the inner surface thereof, the limiting elastic locking assembly 35 may have a locking elastic block and an elastic member as the elastic locking assembly 4 of the present application,

spacing locking end and the spacing recess phase-match of unblock bullet piece, when dismantling second dirt cup unit 2, up pull out second dirt cup unit 2, spacing recess of unblock can with the spacing locking end joint of locking bullet piece ear, so that spacing portion 21 of unblock and joint ring 31 relatively fixed, spacing portion 21 of unblock can provide an ascending power for clearance subassembly 3, specifically, the power of upwards pulling that needs to provide when the relative clearance subassembly 3 unblock of spacing portion 21 of unblock, the power of upwards pulling that needs to provide when being greater than clearance subassembly 3 relative first dirt cup unit unblock. When the force is large enough, the clamping ring 31 of the cleaning assembly 3 can overcome the elastic force of the elastic locking assembly 4 to complete unlocking, so that the cleaning assembly 3 is separated from the first dust cup unit 1 to the third position along with the second dust cup unit 2, and the dismounting process is completed.

When the dust cup cleaning device needs to be installed, the unlocking limiting groove in the unlocking limiting part 21 and the limiting elastic locking component 35 on the inner surface of the cleaning component 3 are locked with each other, the second cyclone separation component 2 transmits downward force to the clamping piece 31 through the limiting elastic locking component 35, the abutting part 411 of the locking elastic block 41 is an arc surface, under the extrusion of the clamping piece 31 made of hard materials, the locking elastic block 41 overcomes the force of the elastic piece 42 and then contracts towards the locking component accommodating cavity 11 of the first dust cup unit 1, the clamping piece 31 continues to move downwards until the abutting part 411 of the locking elastic block 41 enters the annular groove of the clamping piece 31, the relative locking of the cleaning component 3 and the first dust cup unit 1 is completed, at the moment, the connecting seat 321 abuts against the limiting step 17, when the second dust cup unit 2 continues to move downwards, the limiting elastic locking component 35 is separated from the unlocking limiting part 21 due to the limiting effect of the limiting step 17, the second dirt cup unit 2 continues down to the first position to complete the installation.

In other embodiments, the unlocking limit groove may be provided inside the snap ring, and the limit elastic locking assembly 35 is provided near the bottom of the second dust cup unit 2. Compared with the embodiment 1, the embodiment completes the limit through the matching of the unlocking limit groove and the limit elastic locking component 35 on the inner surface of the cleaning component 3, and meanwhile, the cleaning ring 322 does not need to be pushed through the unlocking limit part like the embodiment 1, so the installation and disassembly processes are more labor-saving.

Example 4:

in this embodiment, the difference from the other embodiments is that the unlocking limiting portion is a conical structure, the engaging member 31 is an annular structure, and the maximum inner diameter of the engaging member 31 is smaller than the maximum outer diameter of the conical structure, so that the unlocking limiting portion limits the relative movement between the cleaning assembly 3 and the second dust cup unit 2 to be more moderate, and the damage to the components is reduced.

Example 5:

in this embodiment, different from other embodiments, the outside of the snap ring may be a wedge structure, the outside of the locking elastic block 41 in the elastic locking assembly 4 is matched with the wedge structure, the outside of the snap ring and the locking elastic block 41 realize the functions of interlocking and extrusion unlocking, and when locking, the two sides of the snap ring are respectively in contact with the lower surface of the locking elastic block 41 and the upper surface of the limiting boss so that the snap ring is limited.

Example 6:

in this embodiment, with other embodiments difference lies in, the equipartition has many vertical clearance grooves on the filter screen 23, and 3 inboards of clearance subassembly are equipped with the clearance arch that matches with vertical clearance groove for at the in-process of clearance screen cloth, hair or the long fiber rubbish that the convenient further clearance soft glue can't be cleared up.

Although the present invention has been described by way of preferred embodiments, the present invention is not limited to the embodiments described herein, and various changes and modifications may be made without departing from the scope of the present invention.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The embodiments and features of the embodiments described herein above can be combined with each other without conflict.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.